We Are In a Book!
Gerald is careful. Piggie is not.
Piggie cannot help smiling. Gerald can.
Gerald worries so that Piggie does not have to.
Gerald and Piggie are best friends.
Realizing that their trademark blank background is, in fact, a page, the duo has a blast convincing the reader to say funny things out loud—until Piggie mentions that the book will soon end. From there on, it’s a cute—but never too heady—play on the physical object that the reader is holding, including a bit where Piggie appears to flip the pages forward to get a sense of how much time they have left.